diff --git a/README.md b/README.md
--- a/README.md
+++ b/README.md
@@ -181,49 +181,21 @@
 Vagrant tools must be installed.
 
 ```
-apt install vagrant nfs-kernel-server
+apt install nfs-kernel-server libvirt-daemon-system qemu-kvm vagrant vagrant-libvirt
 ```
 
 Note: `nfs-kernel-server` is needed to export and share the local /tmp/puppet
   to the vm
 
-Multiple provisioners exist. We will focus on 2 for now, virtualbox the default
-and libvirt for now (we had an history of using this one in the past).
+Multiple provisioners exist. We will focus on the one packaged within debian,
+libvirt for now (we had an history of using this one in the past).
 
-#### virtualbox
-
-On a debian based environment,
-[a specific debian repository must be configured](https://www.virtualbox.org/wiki/Linux_Downloads):
-
-```
-apt install virtualbox-6.0 linux-headers-$(uname --kernel-release)
-```
-
-Note:
-- 2020-09-17 vagrant (buster) is not working with virtualbox 6.1, so we use
-  `virtualbox-6.0`
-- `linux-headers` package is required for the vbox guest additions
-
-#### libvirt
-
-Already part of debian so:
-
-```
-apt install libvirt-daemon-system qemu-kvm vagrant=2.2.3+dfsg-1 vagrant-libvirt
-```
-
-Note:
-- Use the vagrant packaged packaged in debian stable (not hashicorp's)
-- Add your user to the libvirt group.
+Note that you need to add your user to the `libvirt` group:
 
 ```
 sudo usermod --append --groups libvirt `whoami`
 ```
 
-```
-usermod -a -G libvirt $USER
-```
-
 ### Usage
 
 #### Prepare the puppet environment
@@ -263,11 +235,11 @@
 $ vagrant status
 Current machine states:
 
-staging-webapp            running (virtualbox)
-staging-worker0           running (virtualbox)
+staging-webapp            running (libvirt)
+staging-worker0           running (libvirt)
 staging-deposit           not created (libvirt)
-prod-worker01             not created (virtualbox)
-test                      poweroff (virtualbox)
+prod-worker01             not created (libvirt)
+test                      poweroff (libvirt)
 
 This environment represents multiple VMs. The VMs are all listed
 above with their current state. For more information about a specific